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What is the Least Common Multiple of 40572 and 40585?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 40572 and 40585 is 1646614620.

LCM(40572,40585) = 1646614620

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Least Common Multiple of 40572 and 40585 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40572 and 40585, than apply into the LCM equation.

GCF(40572,40585) = 1
LCM(40572,40585) = ( 40572 × 40585) / 1
LCM(40572,40585) = 1646614620 / 1
LCM(40572,40585) = 1646614620

Least Common Multiple (LCM) of 40572 and 40585 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40572 and 40585. First we will calculate the prime factors of 40572 and 40585.

Prime Factorization of 40572

Prime factors of 40572 are 2, 3, 7, 23. Prime factorization of 40572 in exponential form is:

40572 = 22 × 32 × 72 × 231

Prime Factorization of 40585

Prime factors of 40585 are 5, 8117. Prime factorization of 40585 in exponential form is:

40585 = 51 × 81171

Now multiplying the highest exponent prime factors to calculate the LCM of 40572 and 40585.

LCM(40572,40585) = 22 × 32 × 72 × 231 × 51 × 81171
LCM(40572,40585) = 1646614620